Why can an intermittently available mobile network result in a poor experience?

Enabling WiFi reduces battery life

It uses more data

Some assets might not be loaded

It is less secure than WiFi

Correct answer is:

Some assets might not be loaded

Explanation: Your browser behaves as if it has connectivity when, for whatever reason, it doesn’t.

Misinterpreted connectivity can result in a poor experience as the browser (or JavaScript) persists in trying to retrieve resources rather than giving up and choosing a sensible fallback. Lie-fi can actually be worse than offline; at least if a device is definitely offline, your JavaScript can take appropriate evasive action.